Whats the diff in the glass, is this a vert door??

First the steel, 67 doors are all the same FB, NB, and vert
The 68 door is the same for all 3 models too but the mounting and hardware for the vent window changed.
69 doors fit all 3 models, vent window mount and hardware same as 68 plus the moved the door lock button forward in 69.
I haven't seen a door that didn't have the same vents.One at inner lower with a color keyed grille, and one it the jamb with a flap.
Now for the glass
All were produced in clear or green tint.
The NB door glass has an arch at the top. It fits all 3 years but only the NB models.
The FB door glass has a straight line at the top and so does the vert glass. I'm told these are the same glass for both models or interchangeable at least but I can't testify to that.
The added hole in the one glass is a mystery to me. Could be a positive stop added at some point. It wouldn't make any difference though being down inside the door.